“I cried my face off,” says Christina of their performance. “I have a feeling a lot of people did. Everyone I know was crying. It was so spectacular. There’s something really special when someone dances to a song because it just takes your song to a whole new level, and especially that type of performance with the whole situation. I couldn’t even believe it.”

The singer-songwriter loved visiting the reality competition because it made her nostalgic for another dance show that offered up her big break.

“I love doing these shows so much because it reminds me of where I came from because of the whole ‘Jar of Hearts’ on So You Think You Can Dance thing (contestants Billy Bell and Kathryn McCormick danced to the track in season 7, leading to the song’s immense popularity),” she explains. “It’s all the same people here who book everythingso it was my pleasure to perform on the show.”

Christina has a big summer planned because her brother is expecting a baby and she’ll take a few weeks off to hang with him in Laguna Beach, Calif. before hitting the road with One Republic. After that, well, it’s a mystery she’s not yet ready to reveal.

“I’m touring in September and October with someone who’s a secret,” she teases. “I can’t say it! I’m just touring until December 2015.”

Who would you love to see Christina Perri tour with? Tell us in the comments or tweet @OKMagazine.